Lance Munksgard, who had been a pit crew coach for the teams of Jimmie Johnson and Dale Earnhardt Jr. since Nov. 2011, has left to join his family’s business.

Greg Morin, who has been pit crew coach for the teams of Kasey Kahne and Jeff Gordon, and Chris Krieg, the assistant coach to Munksgard, will oversee the pit crews for Earnhardt and Johnson until a full-time replacement is hired.

Both Earnhardt and Johnson had a chance to win at Darlington Raceway in the most recent Sprint Cup race earlier this month. Both teams made two-tire changes before the first of two attempts at a green-white-checkered finish. Earnhardt finished second with Johnson third.

Johnson took the lead off the last pit stop at Martinsville Speedway but was passed by Kurt Busch with 11 laps left in the race and finished second to Busch. Johnson held on to the lead after the final pit stop at Auto Club Speedway only to have a tire blow late while leading and cost him the win there.